Review
Copyright ©The Author(s) 2023.
World J Gastrointest Endosc. Mar 16, 2023; 15(3): 84-102
Published online Mar 16, 2023. doi: 10.4253/wjge.v15.i3.84
Figure 5
Figure 5 Tracing from MII-pH study and correct position of MII-pH probe on chest radiography. A: Acid reflux (impedance changes up to 7.5 cm above the pH sensor, which shows a drop in pH); B: Non-acid reflux (impedance changes up to 9 cm above the pH sensor, without a pH drop); C: Swallow shown by impedance changes; D: Chest X-ray showing proper position of the pH sensor (arrow) of the MII-pH probe 2 vertebral bodies above the diaphragm (dotted line).